Mecmesin 432-680 Guide

Installation & Operation of
Mecmesin Interlocked Machine
Guarding
431-971-01
June 2019

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Scope of this document
Mecmesin standard interlocked guarding is designed to seamlessly integrate with a
Mecmesin OmniTest, MultiTest-dV and MultiTest-i motorised test stand. This document
covers the installation and operation of the following products:
Single Column Test Stands
 432-680 MultiTest 0.5 kN Interlocked Guard
 432-681 MultiTest 1.0 kN Interlocked Guard
 432-682 MultiTest 2.5 kN Interlocked Guard
 432-684 OmniTest 5.0 & 7.5 kN Interlocked Guard
Twin Column Test Stands
 805-017+G MultiTest-10i & Interlocked Guard
 805-016+G MultiTest-25i & Interlocked Guard
 805-023+G MultiTest-50i & Interlocked Guard
 815-004+G MultiTest-10xt & Interlocked Guard
 815-005+G MultiTest-25xt & Interlocked Guard
 815-006+G MultiTest-50xt & Interlocked Guard
 820-010+G OmniTest-10 & Interlocked Guard
 820-025+G OmniTest-25 & Interlocked Guard
 820-050+G OmniTest-50 & Interlocked Guard
For further guidance relating to individual test stands or software, please refer to their
individual user manuals.
Alternatively, electronic copies are available at – https://help.mecmesin.com
MECMESIN SUPPLIED INTERLOCKED MACHINE GUARDING HAS BEEN
DESIGNED AND MANUFACTURED IN A CONTROLLED SYSTEM TO ENSURE
COMPLIANCE WITH ALL RELEVANT EUROPEAN COMMUNITY DIRECTIVES.
DECLARATION OF CONFORMITY: A copy of the relevant Declarations of Conformity can be
found in the rear of this manual – See Section 11.
2019 © Mecmesin Ltd, supplied with Mecmesin test systems and not for redistribution
Part no. 431-971-01

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Contents
1. User Manual Guidance 6
2. Guard Safety Overview 7
3. Operator Safety
8
3.1 Training 8
3.2 Eye Protection and Protective Clothing 8
3.3 Recommended Operating Position 9
4. System Diagrams 10
4.1 MultiTest - 0.5 kN, 1.0 kN & 2.5 kN 10
4.2 OmniTest – 5.0 kN & 7.5 kN 11
4.3 Twin Column Test Stands – 10 kN & 25 kN 12
4.4 Twin Column Test Systems – 50 kN 13
5. Unpacking and Parts Supplied 14
5.1 Single Column Test Stands – Inspection and Unpacking 14
5.2 Twin Column Test Stands – Inspection and Unpacking 14
5.3 Packaging 14
5.4 Safe Handling of Single Column Interlock Guards 15
5.5 Additional Items Supplied with Your Guard 15
6. Single Column Guard Installation 17
6.1 Prerequisites 17
6.2 MultiTest Single Column - Installation Guide 18
6.3 OmniTest Single Column – Installation Guide 24
6.4 xt Console Installation 35
6.5 Single Column Override Plug 40
6.6 Twin Column Guard Bung 41
6.7 Checking the Interlock Function and Operation 42
6.8 MultiTest-dV and OmniTest Interlock Function Test 43
6.9 MultiTest-i Interlock Function Test 44
7. Operation 45
7.1 Scope of Use 45
7.2 MultiTest-dV and OmniTest Interlocked Guard Examples 46
7.3 MultiTest- i and xt Interlocked Guard Examples
49
7.4 Responsible Use of Interlock Override
51

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8. Servicing, Maintenance and Repair
52
8.1 Servicing 52
8.2 Maintenance & Cleaning 52
8.3 Repair 52
9. Specifications 53
9.1 Single Column Test Systems 53
9.2 Twin Column Test Systems 54
10. Dimensions 55
11. EC Declaration of Conformity 59
12. Operator Notes 61

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1. User Manual Guidance
Throughout this manual the icons shown below are used to identify important health and
safety information as well as additional installation/operation guidance.
WARNING
The following icon highlights a situation or condition that may lead to
possible personal injury or damage to the associated equipment. Do not
proceed until the warning is read and thoroughly understood.
Warning messages will be highlighted throughout the manual using bold
text.
CAUTION
The following icon indicates a situation or condition that could cause the
equipment to malfunction leading to possible damage. Do not proceed until
the caution message is read and thoroughly understood.
Caution messages will be highlighted throughout the manual using bold
text.
INFORMATION
The following icon indicates additional or supplementary information about
the action, activity or application.
Information notes will be highlighted throughout the manual using bold
text.

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2. Guard Safety Overview
Mecmesin interlocked guarding seamlessly integrates with a Mecmesin OmniTest,
MultiTest-dV and MultiTest-i motorised test stand. The guarding helps to provide additional
ingress protection to your test system, helping to reduce the risk of an operator or object
coming into contact with a moving test stand.
The guard is designed to be used in a dry, clean and tidy environment and should be placed
on a stable and load appropriate work platform away from potentially hazardous
environments or items.
Mecmesin motorised test stands are designed to be used while under constant supervision,
the addition of an interlocked guard does not alter this requirement, failure to monitor a test
stand in operation could lead to damage to the equipment or injury to others.
A standard Mecmesin guard is designed to prevent object ingress and operator
access to moving parts, and load bearing surfaces, while the machine is in use.
For materials or test methods where there is a potential for high energy impacts
with the guarding, Mecmesin recommend consultation with their design team,
(directly or through a local agent) to correctly specify application and safety
requirements.
Before use, it is recommended that all operators of the machinery are given
comprehensive training covering both the test stand and interlock guarding’s
functionality. Preventative safety measures prior to operation, in accordance
with all relevant operator manuals, should also be considered.
Risk assessment of the guarding and associated test stand is recommended and
should be carried out where appropriate. Internal company operating
procedures should also be generated where necessary.
Mecmesin supplied interlocked guarding systems should only be serviced by a
trained Mecmesin employee or approved agent. Any attempt by non-approved
personnel may invalidate any warranty claim and could lead to damage of
equipment or injury. Always ensure correct PPE procedures are in-place and
followed where stated.
All standard Mecmesin supplied guards are fitted with clear Polycarbonate
sheeting to help maximise viewing of the test area. These sheets are fitted to the
front of twin column systems and all sides of single column guarding (Front,
rear and sides).

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3. Operator Safety
3.1 Training
Before using either the test stand or guarding, it is essential that each person operating the
equipment is fully trained in the safe use of motorised testing machines and the guarding’s
functionality. Training can be arranged by contacting Mecmesin Ltd or an authorised
distributor.
Mecmesin test stands have the ability to generate forces large enough to cause
permanent injury to human limbs, when placed between the crosshead and the
base. Fingers, hands and other parts of the body should be kept away from the
moving crosshead and shroud opening.
Interlocked machine guards should be considered in all test methods as they
provide additional ingress protection to the end user. This helps to reduce the
risk of injuries occurring due to contact between the test stand and the operator.
3.2 Eye Protection and Protective Clothing
Although a standard Mecmesin interlocked guard will provide some protection against
projectiles that may be ejected when a brittle sample fails, the device has primarily been
designed to provide ingress protection to prevent the operator and other items from coming
into contact with the moving test stand.
For materials or test methods where there is a potential for high energy impacts with the
guarding, Mecmesin recommend consultation with their design team, (directly or through a
local agent) to correctly specify application and safety requirements.
Eye protection should always be used. Ensure an approved pair of safety
spectacles are worn at all times.
Additional personal protection may be necessary if destructive testing or
volatile failure of a test piece is likely. Consideration needs to be given to the
likely behaviour of the samples being tested and the use of any appropriate
personal protective equipment that may be needed.
A risk assessment should be carried out prior to using the test stand to ensure
that all necessary safety measures have been considered and carried out. It is
important to review the risk assessment if new tests or new samples are
introduced.

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3.3 Recommended Operating Position
Mecmesin recommends that the test stand and guard assembly are placed so that the front
panel is clearly visible and can be reached. For single column test stands, this will typically
require the base of the machine to be approximately at waist height.
An example of the recommended operation position is shown in the image above. Here the
operator has easy access to the front panel as well as a clear view over the entire test stand.
Please Note: The illustration shown above is not to scale.
Improper mounting of the test stand can lead to injury or damage to the
machine. This may occur instantly or over time, test stands that are placed too
high or low can lead to repetitive strain injuries.
For twin column and taller single column models the level at which the test
stand can be placed may be restricted by the height of the ceiling.

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4. System Diagrams
4.1 MultiTest - 0.5 kN, 1.0 kN & 2.5 kN
Below is a list of Mecmesin Interlocked Guards compatible with single column MultiTest
systems (please note that only 432-682 is shown in the system diagrams):
 432-680 MultiTest 0.5 kN Interlocked Guard
 432-681 MultiTest 1.0 kN Interlocked Guard
 432-682 MultiTest 2.5 kN Interlocked Guard
MultiTest System Diagram
1. Door Handle
2. Clear Polycarbonate Sheet
3. Control Panel Access
4. Interlock Mechanism
5. Rear Panel Access